Gravity: Analog Rotation Potentiometer Sensor

Gravity Interface is adapted to allow plug&play. The IO Sensor Expansion Shield is the best match for this sound senor connecting to your Arduino. As this sensor can work at 3.3V which make it compatible with Raspberry Pi, intel edison, joule, and curie.

Improvement List

• Wide voltage range from 3.3V to 5V
• Standard assembling structure (Times-of-5mm Center distance between two 3mm mounting holes)
• Easily recognitive interfaces of sensors ("A" for analog and "D" for digital)
• High-quality connector
• Immersion gold surface 

What is a potentiometer?

"A potentiometer is an instrument for measuring the potential (voltage) in a circuit. A fraction of a known voltage from a resistive slide wire is compared with an unknown voltage by means of a galvanometer. The sliding contact or wiper of the potentiometer is adjusted and the galvanometer briefly connected between the sliding contact and the unknown voltage. The deflection of the galvanometer is observed and the sliding tap adjusted until the galvanometer no longer deflects from zero. At that point the galvanometer draws no current from the unknown source, and the magnitude of voltage can be calculated from the position of the sliding contact.

• Supply Voltage: 3.3V to 5V
  
• Interface type: Analog
• 300 degree rotation sensor
• Size:22x31mm (0.87x 1.2 in)

• Wiki (Analog Rotation Sensor V1)
• Schimetics

• Analog Rotation Potentiometer Sensor V1 x1
• Analog Sensor Cable (SKU:FIT0031) x1